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公开(公告)号：KR101239134B1
公开(公告)日：2013-03-07
申请号：KR1020080125330
申请日：2008-12-10
Applicant: 한국전자통신연구원
IPC: H01L31/00 , H01L29/868
CPC classification number: G02F1/025 , G02F2001/0156 , G02F2201/063 , G02F2201/12 , G02F2202/105 , G02F2202/32
Abstract: 본 발명은 흡수 광변조기에 관한 것이다. 본 발명의 흡수 광변조기는, 기판, 상기 기판 위에 형성된 절연층, 및 상기 절연층 위에 형성된 PIN 다이오드 구조의 도파로를 포함하되, 상기 도파로에 입력된 빛의 변조 동작시 상기 PIN 다이오드의 진성 영역의 흡수율이 변화되는 것을 특징으로 한다. 특히, 본 발명의 흡수 광변조기는 PIN 다이오드의 단면적을 크게 줄여 고속, 저전력소모, 소형의 특징을 얻을 수 있게 된다.
손실, 광변조기, 흡수율, 프리-엠퍼시스-
公开(公告)号：KR1020110073171A
公开(公告)日：2011-06-29
申请号：KR1020100027745
申请日：2010-03-29
Applicant: 한국전자통신연구원 , 서울대학교산학협력단
CPC classification number: H03F3/082 , H03F1/223 , H03F2200/36 , H04B10/693
Abstract: PURPOSE: A trans-impedance amplifying circuit is provided to improve the integrity of the trans-impedance amplifying circuit by reducing the size of electrostatic capacity. CONSTITUTION: A photo diode(310) converts an optical signal into an electric signal. A cascode type input terminal(320) is in connection with the photo diode. A first transistor(M1) forms a current path between the amplifying terminal and the output terminal of the photo diode according to the voltage level of a first node. A second transistor(M2) forms a current path between a second node and the ground according to the output voltage level of the photo diode. An amplifying terminal(330) amplifies the output of the input terminal.
Abstract translation: 目的：提供一种跨阻抗放大电路，通过减小静电电容的尺寸来提高跨阻抗放大电路的完整性。 构成：光电二极管（310）将光信号转换为电信号。 共源共栅型输入端子（320）与光电二极管连接。 第一晶体管（M1）根据第一节点的电压电平在光电二极管的放大端与输出端之间形成电流路径。 第二晶体管（M2）根据光电二极管的输出电压电平在第二节点和地之间形成电流路径。 放大端子（330）放大输入端子的输出。
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公开(公告)号：KR1020110070776A
公开(公告)日：2011-06-24
申请号：KR1020100115078
申请日：2010-11-18
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A high linearity mixer and a direct conversion receiver using the same are provided to eliminate the frequency dependency characteristic of conversion gain with an analog passive mixer. CONSTITUTION: A mixer(200) comprises a sampler unit(210) and a buffer unit(220). According to a sampling frequency, the sampler unit performs the electric charge sampling of an input current. The input unit has a low impedance. The buffer unit receives the output signal of the sampler unit. The buffer unit amplifies the output signal. The buffer unit outputs the current signal. A filter(300) eliminates high frequency components from the output signal of the mixer.
Abstract translation: 目的：提供一种高线性混频器和使用该线性混频器的直接转换接收器，以通过模拟无源混频器消除转换增益的频率依赖特性。 构成：混合器（200）包括取样器单元（210）和缓冲单元（220）。 根据采样频率，采样器单元执行输入电流的电荷采样。 输入单元具有低阻抗。 缓冲单元接收采样器单元的输出信号。 缓冲单元放大输出信号。 缓冲单元输出电流信号。 滤波器（300）从混频器的输出信号中消除高频分量。
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公开(公告)号：KR1020110027549A
公开(公告)日：2011-03-16
申请号：KR1020100066675
申请日：2010-07-12
Applicant: 한국전자통신연구원
Abstract: PURPOSE: An electro-optic modulating device is provided to form vertical PN junctions or vertical PIN junctions in an optical waveguide, thereby increasing a change of an effective refractive index during a device operation. CONSTITUTION: A semiconductor film(30) configuring an optical waveguide(WG) is arranged on a substrate(10). The optical waveguide comprises the first slab part(SP1), the second slab part(SP2), and a lip part(RP). The lip part includes a thickness thicker than the first and second slab parts. The first and second doping areas(D1,D2) are formed on the first and second slab parts respectively. A vertical doping area(50) configuring a vertical structure is formed in the lip part.
Abstract translation: 目的：提供电光调制装置以在光波导中形成垂直PN结或垂直PIN结，从而在器件操作期间增加有效折射率的变化。 构成：构成光波导（WG）的半导体膜（30）配置在基板（10）上。 光波导包括第一板坯部（SP1），第二板坯部（SP2）和唇部（RP）。 唇部包括比第一和第二板坯部分厚的厚度。 第一和第二掺杂区域（D1，D2）分别形成在第一和第二平板部件上。 在唇部形成垂直结构的垂直掺杂区域（50）。
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公开(公告)号：KR100921515B1
公开(公告)日：2009-10-15
申请号：KR1020070059526
申请日：2007-06-18
Applicant: 한국전자통신연구원
IPC: H03F3/45
Abstract: 본 발명의 OTA에서는 고주파용 Gm-C 필터 집적회로(IC)를 구현하는데 사용되는 기존의 Nauta 트랜스컨덕터를 새로운 방법과 관점에서 재해석함으로써 그 구성요소중 잉여요소를 제거하여 단순화하고, 잔존하는 인버터를 서로 역할 분담을 시키는 방법을 통해 보다 단순하면서도 효율적인 회로구조를 안출하였다. 본 발명의 재해석 관점에 의거하여 기존의 Nauta-Transconductor에서와 동일한 동작특성을 기존의 Nauta-Transconductor에 비해 적은 갯수의 인버터로써 달성할 수 있을 뿐 아니라, 필터 전체의 주파수 특성을 위해 요구되는 트랜스컨덕턴스값에 전혀 영향을 주지 않으면서 퀄리티 팩터만을 독립적으로 제어할 수단을 마련함으로써 필터 특성을 효과적으로 개선할 수 있다.
능동필터, Gm-C 필터, Nauta-Transconductor, Nauta OTA-
Patent Agency Ranking
公开(公告)号：KR1020090059709A
公开(公告)日：2009-06-11
申请号：KR1020070126708
申请日：2007-12-07
Applicant: 한국전자통신연구원
IPC: H01L31/0232 , H01L31/12
CPC classification number: G02F1/218 , G02F2001/212 , G02F2201/302
Abstract: A semiconductor integrated circuit including a photoelectric device is provided to reduce a length of an optical waveguide part by installing the optical waveguide part of a thin thickness. A photoelectric device(150) is arranged on a substrate(100). The photoelectric device includes a semiconductor pattern(110). The semiconductor pattern includes an optical waveguide part(106) extended in a first direction and a pair of recessed parts(104) arranged in both sides of the optical waveguide part. The photoelectric device includes a first doped region(112) and a second doped region(114) formed in a pair of recessed parts. A first optical fiber is arranged on a top part of a first grating coupler. A second grating coupler is connected to an output terminal of the photoelectric device.
Abstract translation: 提供包括光电装置的半导体集成电路，通过安装薄的光波导部分来减小光波导部分的长度。 光电器件（150）布置在衬底（100）上。 光电器件包括半导体图案（110）。 半导体图案包括沿第一方向延伸的光波导部分（106）和布置在光波导部分两侧的一对凹部（104）。 光电器件包括形成在一对凹陷部分中的第一掺杂区域（112）和第二掺杂区域（114）。 第一光纤布置在第一光栅耦合器的顶部。 第二光栅耦合器连接到光电装置的输出端。
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公开(公告)号：KR1020080052257A
公开(公告)日：2008-06-11
申请号：KR1020070065523
申请日：2007-06-29
Applicant: 한국전자통신연구원
IPC: H03H11/42
CPC classification number: H03H11/42 , H03F1/3211 , H03F2203/45371 , H03H11/50
Abstract: A gyrator is provided to efficiently improve a quality factor by controlling the quality factor independently without having an influence on a transconductance value. A first positive port, a first negative port and a second negative port are coupled to a positive input terminal, a negative input terminal and an output terminal of a first parallel conversion cell(41a), respectively. The first negative, the first positive port and a second positive port are coupled to the positive input terminal, the negative input terminal and the output terminal of a second parallel conversion cell(42a), respectively. A positive input terminal, a negative input terminal and an output terminal of a first cross feedback conversion cell(45a) are coupled to the output terminal of the second parallel conversion cell, the ground terminal, and the output terminal of the first parallel conversion cell. A positive input terminal, a negative input terminal and an output terminal of a second cross feedback conversion cell(46a) are coupled to the output terminal of the first parallel conversion cell, the ground terminal, and the output terminal of the second parallel conversion cell, respectively. The second positive port, the second negative port and the first negative port are coupled to a positive input terminal, a negative input terminal and an output terminal of a third parallel conversion cell(41b), respectively. The second negative, the second positive port and the first positive port are coupled to the positive input terminal, the negative input terminal and the output terminal of a fourth parallel conversion cell(42b), respectively. A positive input terminal, a negative input terminal and an output terminal of a third cross feedback conversion cell(45b) are coupled to the output terminal of the fourth parallel conversion cell, the ground terminal, and the output terminal of the third parallel conversion cell, respectively. A positive input terminal, a negative input terminal and an output terminal of a fourth cross feedback conversion cell(46b) are coupled to the output terminal of the third parallel conversion cell, the ground terminal, and the output terminal of the fourth parallel conversion cell.
Abstract translation: 提供回旋器以通过独立地控制质量因子而不影响跨导值来有效地提高品质因数。 第一正端口，第一负端口和第二负端口分别耦合到第一并联转换单元（41a）的正输入端子，负输入端子和输出端子。 第一负极，第一正极端口和第二正极端口分别耦合到第二并联转换单元（42a）的正极输入端子，负极输入端子和输出端子。 第一交叉反馈转换单元（45a）的正输入端子，负输入端子和输出端子耦合到第二并联转换单元的输出端子，第一并联转换单元的接地端子和输出端子 。 第二交叉反馈转换单元（46a）的正输入端子，负输入端子和输出端子耦合到第一并联转换单元，接地端子和第二并联转换单元的输出端子的输出端子 ， 分别。 第二正端口，第二负端口和第一负端口分别耦合到第三并联转换单元（41b）的正输入端子，负输入端子和输出端子。 第二负极，第二正极端口和第一正极端口分别耦合到第四并联转换单元（42b）的正极输入端子，负极输入端子和输出端子。 第三交叉反馈转换单元（45b）的正输入端子，负输入端子和输出端子耦合到第四并联转换单元，接地端子和第三并联转换单元的输出端子的输出端子 ， 分别。 第四交叉反馈转换单元（46b）的正输入端子，负输入端子和输出端子耦合到第四并联转换单元的第三并联转换单元，接地端子和输出端子的输出端子 。
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公开(公告)号：KR1020080052245A
公开(公告)日：2008-06-11
申请号：KR1020070058789
申请日：2007-06-15
Applicant: 한국전자통신연구원
IPC: H03F3/45
CPC classification number: H03F3/45475 , H03F3/45183 , H03F2203/45138
Abstract: A Nauta operational transconductance amplifier is provided to remove a common node signal component by performing an improved operational transconductance amplifier. A Nauta operational transconductance amplifier includes a first parallel conversion cell(31), a second parallel conversion cell(32), a first cross feedback conversion cell(35), and a second cross feedback conversion cell(36). The first parallel conversion cell receives a first input voltage through a positive input terminal, and receives a second input voltage through a negative input terminal. The second parallel conversion cell receives the second input voltage from the positive input terminal, and receives the first input voltage through the negative input terminal. A positive input terminal of the first cross feedback conversion cell is coupled to an output terminal of the second parallel conversion cell. A negative input terminal of the first cross feedback conversion cell is coupled to a ground voltage terminal. An output terminal of the first cross feedback conversion cell is coupled to an output terminal of the second parallel conversion cell. A positive input terminal of the second cross feedback conversion cell is coupled to the output terminal of the first parallel conversion cell. A negative input terminal of the second cross feedback conversion cell is coupled to the ground voltage terminal. The output terminal of the second cross feedback conversion cell is coupled to the output terminal of the first parallel conversion cell.
Abstract translation: 提供Nauta操作跨导放大器以通过执行改进的运算跨导放大器去除公共节点信号分量。 Nauta操作跨导放大器包括第一并联转换单元（31），第二并行转换单元（32），第一交叉反馈转换单元（35）和第二交叉反馈转换单元（36）。 第一并行转换单元通过正输入端接收第一输入电压，并通过负输入端接收第二输入电压。 第二并行转换单元从正输入端接收第二输入电压，并通过负输入端接收第一输入电压。 第一交叉反馈转换单元的正输入端耦合到第二并联转换单元的输出端。 第一交叉反馈转换单元的负输入端子耦合到接地电压端子。 第一交叉反馈转换单元的输出端耦合到第二并联转换单元的输出端。 第二交叉反馈转换单元的正输入端耦合到第一并联转换单元的输出端。 第二交叉反馈转换单元的负输入端子耦合到接地电压端子。 第二交叉反馈转换单元的输出端耦合到第一并行转换单元的输出端。
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公开(公告)号：KR1020050025384A
公开(公告)日：2005-03-14
申请号：KR1020030062414
申请日：2003-09-06
Applicant: 한국전자통신연구원
IPC: G02B6/12
CPC classification number: G02B6/122 , G02B6/4202
Abstract: A waveguide photodetector is provided to reduce trapping of carriers due to a bandgap difference between two materials by reducing a difference of refractive indexes between absorption and cladding layers. An n-cladding layer(43), a non-doped spacer(41), an absorption layer(40), and a p-cladding layer(42) are formed on a substrate(44). The portions of the p-cladding layer, the absorption layer, and the spacer are etched by a preset thickness. The etching thickness is adjusted so that a central axis of a guided light is aligned with a central axis of the absorption layer. A bandgap of the spacer layer is larger than that of the absorption layer and equal to or smaller than that of the n-cladding layer. A refractive ratio of the spacer layer is similar to that of the absorption layer and equal to or larger than that of the n-cladding layer.
Abstract translation: 提供了一种波导光电检测器，通过减小吸收层和包层之间的折射率差，由于两种材料之间的带隙差异而减少了载流子的捕获。 在衬底（44）上形成n包覆层（43），非掺杂间隔物（41），吸收层（40）和p包层（42）。 p包层，吸收层和间隔物的部分被蚀刻预定厚度。 调整蚀刻厚度，使得引导光的中心轴与吸收层的中心轴对准。 间隔层的带隙大于吸收层的带隙，并且等于或小于n包层的带隙。 间隔层的折射率与吸收层的折射率相同，并且等于或大于n包层的折射率。
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公开(公告)号：KR100440257B1
公开(公告)日：2004-07-15
申请号：KR1020020071278
申请日：2002-11-15
Applicant: 한국전자통신연구원
IPC: G02B6/12
Abstract: PURPOSE: A method for manufacturing an optical integrated circuit is provided to automatically align two optical devices with each other by defining a waveguide of a passive device and an active device by using only one mask. CONSTITUTION: A method for manufacturing an optical integrated circuit includes the steps of: forming a core layer(101) and a buffer layer(102) of a mode size converter on a substrate(100) provided with an active region(A) and a passive region(B); forming a first guide layer, the core layer(101), a second guide layer and a clad layer on the buffer layer(102) of the active region(A); forming the core layer(101) and the clad layer on the buffer layer(102) of the passive region(B); forming a first mask pattern so as to define the width of the upper waveguide of the mode size converter; etching the clad layer, the second guide layer, the core layer(101) of the active region(A), the first guide layer and the buffer layer(102) of the passive region(B) by using the first mask; after forming the second mask, removing the buffer layer(102), the core layer(101) and the portion of the substrate; forming a current blocking layer on the exposed substrate; and forming the clad layer on the entire top surface by removing the second mask pattern of the active region(A).
Abstract translation: 目的：提供一种用于制造光学集成电路的方法，以通过仅使用一个掩模来限定无源器件和有源器件的波导来自动地将两个光学器件彼此对准。 用于制造光学集成电路的方法包括以下步骤：在设置有有源区（A）和有源区（A）的衬底（100）上形成模式尺寸转换器的芯层（101）和缓冲层 被动区域（B）; 在有源区（A）的缓冲层（102）上形成第一引导层，芯层（101），第二引导层和包覆层; 在无源区（B）的缓冲层（102）上形成芯层（101）和包层; 形成第一掩模图案以限定模式尺寸转换器的上部波导的宽度; 利用所述第一掩模对所述被动区域B的包覆层，第二引导层，有源区A的核心层101，第一引导层和缓冲层102进行刻蚀; 在形成所述第二掩模之后，去除所述缓冲层（102），所述芯层（101）和所述衬底的所述一部分; 在暴露的衬底上形成电流阻挡层; 以及通过去除有源区（A）的第二掩模图案在整个顶表面上形成覆盖层。
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